A358712 Number of self-avoiding closed paths on an n X 6 grid which pass through four corners ((0,0), (0,5), (n-1,5), (n-1,0)).

1, 17, 229, 3105, 44930, 674292, 10217420, 154980130, 2350703747, 35658264301, 540957030465, 8206939419403

Offset

2,2

Comments

Also number of self-avoiding closed paths on a 6 X n grid which pass through four corners ((0,0), (0,5), (n-1,5), (n-1,0)).

Links

Table of n, a(n) for n=2..13.

Crossrefs

Column k=6 of A333513.

Cf. A358697.

Sequence in context: A243229 A329015 A016166 * A206354 A119273 A125474

Adjacent sequences: A358709 A358710 A358711 * A358713 A358714 A358715

Keyword

nonn,more

Author

Seiichi Manyama, Nov 28 2022

Status

approved